They way in which we handle these complex assemblies has changed over the years. The current thinking is to publish each separate moulding as a LDraw "Part", but to prefix the description with "~" if it is not a part that is issued separately by LEGO. In many cases we don't know (and maybe will never know) the design number for these moulding, so thet get allocated a Unnnn number.
Subparts should only be used for repeated or reusable sections of a "Part". A pertinent example is for sections of a part that may be used in mirror-image form in another part - but to allow stud substitution by renderers that include the LEGO logo, studs should not be included in such subparts, but rather placed in the parent part file.
The issued assembly is normally nnnnC01, where nnnn is the design number of the largest or most obvious "Part". Sometime we know the LEGO number for the assembly.
I can rename and renumber as Admin, so please give me a day or so to straighten this out, then we can assess what remains to be done.
Subparts should only be used for repeated or reusable sections of a "Part". A pertinent example is for sections of a part that may be used in mirror-image form in another part - but to allow stud substitution by renderers that include the LEGO logo, studs should not be included in such subparts, but rather placed in the parent part file.
The issued assembly is normally nnnnC01, where nnnn is the design number of the largest or most obvious "Part". Sometime we know the LEGO number for the assembly.
I can rename and renumber as Admin, so please give me a day or so to straighten this out, then we can assess what remains to be done.
Chris (LDraw Parts Library Admin)